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Commit eab84318 authored by Marc Zyngier's avatar Marc Zyngier
Browse files

irqchip/gic-v4: Add VPE command interface 



Add the required interfaces to schedule a VPE and perform a
VINVALL command.

Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarEric Auger <eric.auger@redhat.com>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 7de5c0af

drivers/irqchip/irq-gic-v4.c

+25 −0
Original line number Diff line number Diff line
@@ -72,3 +72,28 @@ void its_free_vcpu_irqs(struct its_vm *vm) 
	irq_domain_remove(vm->domain);

	irq_domain_free_fwnode(vm->fwnode);

}



static int its_send_vpe_cmd(struct its_vpe *vpe, struct its_cmd_info *info)

{

	return irq_set_vcpu_affinity(vpe->irq, info);

}



int its_schedule_vpe(struct its_vpe *vpe, bool on)

{

	struct its_cmd_info info;



	WARN_ON(preemptible());



	info.cmd_type = on ? SCHEDULE_VPE : DESCHEDULE_VPE;



	return its_send_vpe_cmd(vpe, &info);

}



int its_invall_vpe(struct its_vpe *vpe)

{

	struct its_cmd_info info = {

		.cmd_type = INVALL_VPE,

	};



	return its_send_vpe_cmd(vpe, &info);

}

include/linux/irqchip/arm-gic-v4.h

+2 −0
Original line number Diff line number Diff line
@@ -93,5 +93,7 @@ struct its_cmd_info { 


int its_alloc_vcpu_irqs(struct its_vm *vm);

void its_free_vcpu_irqs(struct its_vm *vm);

int its_schedule_vpe(struct its_vpe *vpe, bool on);

int its_invall_vpe(struct its_vpe *vpe);



#endif